Abstract
The temperature dependent phase behavior of Langmuir films of n-alkanes on mercury was studied using surface tensiometry and surface X-ray diffraction methods. A gas and several condensed phases of single, double, and triple layers of lying-down molecules were found to be dependent on chain lengths and temperatures. The alkanes studied showed transitions from a triple to a double to a single layer with increasing temperature. It was found that the film and bulk transitions were driven by the proliferation of gauche defects in the chain with increasing temperature.
Original language | English |
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Pages (from-to) | 8003-8009 |
Number of pages | 7 |
Journal | Journal of Chemical Physics |
Volume | 121 |
Issue number | 16 |
DOIs | |
State | Published - 22 Oct 2004 |